US3800432A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photo-sensitive sheet drying apparatus
Assignee: Fujifilm Holdings Corp
•
Filing: 1971-08-16
•
Granted: 1974-04-02
•
Expires: 1991-08-16
Abstract
Abstract An improvement of a photo-sensitive sheet drying apparatus having upper and lower conveyor belts arranged lengthwise in the parallel relationship. The apparatus has means to drive these conveyor belts at equi-speed in one direction, thus assuring the smooth transportation of photo-sensitive sheets in the course of the drying operation without the curled end of the wet sheet catching when dried.
Inventors
- 👤 T Miyata
- 👤 T Ogawa
- 👤 S Hamada
- 👤 S Watanabe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:07
CPC Classifications
F; F26; F26B; F26B15/00; F26B15/10; F26B15/12; F26B15/18
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
147 words
A photo-sensitive sheet drying apparatus comprising: a. a first conveyor means which is permeable to a stream of gas; b. a second conveyor means vertically spaced apart from said first conveyor means, said first and second conveyor means being lengthwise parallel to each other; c. means for simultaneously moving said first and second conveyor means in the same direction and at equal speeds, said first and second conveyor means being capable of guiding between them a photo-sensitive sheet; and d. means for supplying and directing a stream of gas through said first conveyor means towards said second conveyor means, said first and second conveyor means being spaced such as to enable only the ends of the sheet to touch said first conveyor means while an intermediate portion of the sheet contacts the second conveyor means when there has been sufficient drying to cause curling of the sheet.
Claim 2
Dependent Claim
147 words
A photo-sensitive sheet drying apparatus comprising: a. a first conveyor means which is permeable to a stream of gas; b. a second conveyor means vertically spaced apart from said first conveyor means, said first and second conveyor means being lengthwise parallel to each other; c. means for simultaneously moving said first and second conveyor means in the same direction and at equal speeds, said first and second conveyor means being capable of guiding between them a photo-sensitive sheet; and d. means for supplying and directing a stream of gas through said first conveyor means towards said second conveyor means, said first and second conveyor means being spaced such as to enable only the ends of the sheet to touch said first conveyor means while an intermediate portion of the sheet contacts the second conveyor means when there has been sufficient drying to cause curling of the sheet.
Claim 3
Dependent Claim
18 words
A photo-sensitive sheet drying apparatus according to claim 1 wherein said first conveyor means comprises a reticulate belt.
Claim 4
Dependent Claim
21 words
A photo-sensitive sheet drying apparatus according to claim 1 wherein both of said conveyor means comprise an arrangement of staggered rollers.
Claim 5
Dependent Claim
27 words
An apparatus according to claim 1 wherein one of said conveyor means comprises a reticulate belt whereas the other conveyor means comprises an arrangement of staggered rollers.
Claim 6
Dependent Claim
32 words
An apparatus according to claim 1 wherein said means for directing a stream of gas comprises a perforated plate having numerous air holes normal to the travelling direction of said conveyor means.
Claim 7
Dependent Claim
31 words
An apparatus according to claim 1 wherein said means for directing a stream of gas comprises a perforated plate having numerous holes slanting in the travelling direction of said conveyor means.
Claim 8
Dependent Claim
24 words
An apparatus according to claim 1 wherein said stream of gas is sufficient to force a wet, photo-sensitive sheet against said second conveyor means.
Claim 9
Dependent Claim
25 words
A photo-sensitive sheet drying apparatus according to claim 1 wherein at least said second conveyor means comprises a crosswise staggered arrangement of disc roller elements.
References Cited (Backward Citations)
US1426095A
Cited
US1560579A
Cited
GB288139A
Cited
DE742858C
Cited
US3071866A
Cited
US3199213A
Cited
US3440944A
Cited
US3328895A
Cited
US3369306A
Cited
US3405456A
Cited
US3434225A
Cited
US3681853A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-04-01 | 1977-10-01 | 1978-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-01 | 1981-10-01 | 1982-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-01 | 1985-10-01 | 1986-04-02 | $7700.00 | Window Closed / Lapsed |